68210064 has 120 divisors (see below), whose sum is σ = 208528320. Its totient is φ = 20687616.

The previous prime is 68210053. The next prime is 68210071. The reversal of 68210064 is 46001286.

It is a super-2 number, since 2×68210064² = 9305225661768192, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 155157 + ... + 155595.

It is an arithmetic number, because the mean of its divisors is an integer number (1737736).

Almost surely, 2^68210064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68210064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104264160).

68210064 is an abundant number, since it is smaller than the sum of its proper divisors (140318256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68210064 is a wasteful number, since it uses less digits than its factorization.

68210064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549 (or 540 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 68210064 is about 8258.9384305733. The cubic root of 68210064 is about 408.5853765710.

The spelling of 68210064 in words is "sixty-eight million, two hundred ten thousand, sixty-four".